[Numpy-discussion] multiprocessing, numpy and 32-64 bit cohabitation
robert.kern at gmail.com
Thu Sep 19 04:55:05 EDT 2013
On Thu, Sep 19, 2013 at 2:40 AM, Antony Lee <antony.lee at berkeley.edu> wrote:
> Thanks, I didn't know that multiprocessing Managers could be used with
processes not started by multiprocessing itself... I will give them a try.
> I just need to compute FFTs, but speed is a real issue for me (I am using
the results for real-time feedback).
I am pretty sure that the overhead of communicating a large array from one
process to another will vastly overwhelm any speed gains you get by using
pyFFTW over numpy.fft.
> To be honest I don't know yet if the FFTs are going to be the limiting
step but I thought I may as well give pyFFTW a try and ran into that
In that case, thinking about multiprocessing or even pyFFTW is far too
premature. Implement your code with numpy.fft and see what performance you
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